BQ2204ASN-NTR

Controllers Overview

The BQ2204ASN-NTR is an X4 SRAM Nonvolatile Controller Unit manufactured by Texas Instruments. It provides functions for converting up to four banks of standard CMOS SRAM into nonvolatile memory. The device operates within a supply voltage range of 4.5V to 5.5V and supports an operating temperature range of -40°C to 85°C. It is housed in a 16-SOIC package with a width of 3.90mm and is supplied in Tape & Reel (TR) packaging.

Controllers Feature Summary

• Converts standard CMOS SRAM banks into nonvolatile memory
• Supports management of up to four independent SRAM banks
• Integrates voltage supervisor and reset functionality

Controllers Applications

• Nonvolatile memory systems requiring SRAM retention
• Industrial control systems needing data preservation during power loss
• Embedded applications utilizing voltage supervision

Controllers Procurement Notes

Verify the specific suffix 'NTR' indicates Tape & Reel packaging, distinct from tube or tray options. Confirm the 'A' grade designation matches required temperature specifications. Check current lifecycle status as obsolete and assess availability through authorized distributors or secondary markets. Ensure RoHS3 compliance aligns with regulatory requirements.

Controllers Selection Notes

Select this component when designing systems that require nonvolatile storage for multiple SRAM banks without external batteries. Compare against the BQ2204APN if through-hole packaging is preferred. Verify compatibility with the target CMOS SRAM voltage levels and interface requirements before finalizing the design.

Controllers Part Context

This part belongs to the BQ2204 family of SRAM nonvolatile controllers. It shares functional similarities with the BQ2201SN but offers support for four SRAM banks instead of fewer. The device is designed to integrate with standard CMOS SRAM components to provide data retention capabilities in portable and industrial electronics.

Controllers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. The BQ2204APN is a pin-compatible alternative in a different package type. Evaluate system redesign requirements if transitioning from obsolete stock.